<template>
    <el-card shadow="never" class="border-0">
        <!-- 新增 | 刷新 -->
        <ListHeader @create="handleCreate" @refresh="getData" />


        <el-table :data="tableData" stripe style="width: 100%" element-loading-text="加载中..."
            element-loading-spinner="el-icon-loading" v-loading="loading">
            <el-table-column label="优惠券名称" width="350">
                <template #default="{ row }">
                    <div class="border border-dashed py-2 px-4 rounded"
                        :class="row.statusText == '领取中' ? 'active' : 'inactive'">
                        <h5 class="font-bold text-md">{{ row.name }}</h5>
                        <small>{{ row.start_time }} ~ {{ row.end_time }}</small>
                    </div>
                </template>
            </el-table-column>
            <el-table-column prop="statusText" label="状态" />
            <el-table-column label="优惠">
                <template #default="{ row }">
                    {{ row.type == 0 ? "满减" : "折扣" }} {{ row.type == 0 ? ("¥" + row.value) : (row.value + "折") }}
                </template>
            </el-table-column>
            <el-table-column prop="total" label="发放数量" />
            <el-table-column prop="used" label="已使用" />

            <el-table-column label="操作" width="180" align="center">
                <template #default="scope">
                    <el-button v-if="scope.row.statusText == '未开始'" type="primary" size="small" text @click="handleEdit(scope.row)">修改</el-button>

                    <el-popconfirm v-if="scope.row.statusText != '领取中'" title="是否删除此优惠券?" confirm-button-text="确认" cancel-button-text="取消"
                        @confirm="handleDelete(scope.row.id)">
                        <template #reference>
                            <el-button text type="primary" size="small">删除</el-button>
                        </template>
                    </el-popconfirm>

                    <el-popconfirm v-if="scope.row.statusText == '领取中'" title="是否要让该优惠券失效?" confirm-button-text="确认" cancel-button-text="取消"
                        @confirm="handleStatusChange(0,scope.row)">
                        <template #reference>
                            <el-button type="danger" size="small">失效</el-button>
                        </template>
                    </el-popconfirm>

                </template>
            </el-table-column>
        </el-table>
        <div class="flex items-center justify-center mt-5">
            <el-pagination background layout="prev,pager, next" :total="total" :current-page="currentPage"
                :page-size="limit" @current-change="getData" />
        </div>

        <FormDrawer ref="formDrawerRef" :title="drawerTitle" @submit="handleSubmit">
            <el-form :model="form" ref="formRef" :rules="rules" label-width="80px" :inline="false">
                <el-form-item label="优惠券名称" prop="name">
                    <el-input v-model="form.name" placeholder="优惠券名称" style="width: 50%;"></el-input>
                </el-form-item>

                <el-form-item label="类型" prop="type">
                    <el-radio-group v-model="form.type" @change="">
                        <el-radio :label="0">满减</el-radio>
                        <el-radio :label="1">折扣</el-radio>
                    </el-radio-group>
                </el-form-item>

                <el-form-item label="面值" prop="value">
                    <el-input v-model="form.value" placeholder="面值" style="width: 50%;">
                        <template #append>{{ form.type ? "折" : "元" }}</template>
                    </el-input>
                </el-form-item>

                <el-form-item label="发行量" prop="total">
                    <el-input-number v-model="form.total" :min="1" :max="10000"></el-input-number>
                </el-form-item>

                
                <el-form-item label="最低使用价格" prop="min_price">
                    <el-input v-model="form.min_price" placeholder="最低使用价格" type="number"></el-input>
                </el-form-item>

                <el-form-item label="排序" prop="order">
                    <el-input-number v-model="form.order" :min="1" :max="10000"></el-input-number>                
                </el-form-item>

                <el-form-item label="活动时间">
                    <el-date-picker
                       :editable="false"
                        v-model="timerange"
                        value-format="YYYY-MM-DD HH:mm:ss"
                        type="datetimerange"
                        range-separator="To"
                        start-placeholder="开始时间"
                        end-placeholder="结束时间"
                        />
                </el-form-item>

                <el-form-item label="描述" prop="desc">
                    <el-input v-model="form.desc" placeholder="描述" type="textarea" :rows="5"></el-input>
                </el-form-item>
            </el-form>

        </FormDrawer>

    </el-card>
</template>



<script setup>
import { computed } from 'vue'
import {
    getCouponList,
    createCoupon,
    updateCoupon,
    deleteCoupon,
    updateCouponStatus
} from "@/api/coupon"
import FormDrawer from "@/components/FormDrawer.vue"
import ListHeader from "@/components/ListHeader.vue"
import { useInitTable, useInitForm } from "@/composables/useCommon.js"

function formStatus(row) {
    let s = "领取中"
    let start_time = (new Date(row.start_time)).getTime()
    let now = (new Date()).getTime()
    let end_time = (new Date(row.end_time)).getTime()
    if (start_time > now) {
        s = "未开始"
    } else if (end_time < now) {
        s = "已结束"
    } else if (row.status == 0) {
        s = "已失效"
    }
    return s

}


const {
    tableData,
    loading,
    currentPage,
    total,
    limit,
    getData,
    handleDelete,
    handleStatusChange

} = useInitTable({
    getList: getCouponList,
    onGetListSuccess: (res) => {
        tableData.value = res.list.map(o => {
            // 转化优惠券状态
            o.statusText = formStatus(o)
            return o
        })
        total.value = res.totalCount

    },
    delete: deleteCoupon,
    updateStatus:updateCouponStatus
})


const {
    formDrawerRef,
    formRef,
    form,
    rules,
    drawerTitle,
    handleSubmit,
    handleCreate,
    handleEdit

} = useInitForm(
    {
        form: {
            name: "",
            type: 0,
            value:0,
            total:100,
            min_price:0,
            start_time:null,
            end_time:null,
            order:50,
            desc:""
        },
        rules: {},
        getData,
        update: updateCoupon,
        create: createCoupon,

        beforeSubmit:(f)=>{
            if(typeof f.start_time != "number"){
                f.start_time = (new Date(f.start_time)).getTime()
            }
            if(typeof f.end_time != "number"){
                f.end_time = (new Date(f.end_time)).getTime()
            }

            return f
        }
    })


const timerange = computed({
    get(){
        return form.start_time && form.end_time ?  [form.start_time, form.end_time] : []
    },
    set(val){
        form.start_time = val[0]
        form.end_time = val[1]
    }
})

</script>

<style scoped>
.active {
    @apply border-rose-200 bg-rose-50 text-red-400;
}

.inactive {
    @apply border-gray-200 bg-gray-50 text-gray-400;
}
</style>